Table 5.
Univariate and multivariate analyses of predictors of irregular pulsation of small intracranial aneurysms.
| Variables | Univariable | Multivariable | ||
|---|---|---|---|---|
| OR (95% CI) | p-value | OR (95% CI) | p-value | |
| Aneurysm size | 1.67 (1.32–2.13) | <0.001 | ||
| Neck size | 1.36 (1.00–1.84) | 0.048 | ||
| Perpendicular height | 1.67 (1.29–2.15) | <0.001 | ||
| Aneurysm height | 1.8 (1.40–2.32) | <0.001 | ||
| Vessel size | 0.66 (0.48–0.90) | 0.008 | ||
| Size ratio | 4.66 (2.51–8.63) | <0.001 | 2.59 (1.34–4.99) | 0.005 |
| Aspect ratio | 4.18 (1.83–9.58) | 0.001 | ||
| Flow angle | 1.01 (1.00–1.02) | 0.029 | ||
| Aneurysm location | ||||
| MCA vs. ICA | 3.66 (1.40–9.52) | 0.008 | ||
| ACA/PCoA/PC vs. ICA | 2.03 (1.11–3.71) | 0.022 | ||
| Irregular aneurysm | 10.92 (4.85–24.60) | <0.001 | 6.44 (2.69–15.40) | <0.001 |
| Aneurysm rupture | 12.74 (2.77–58.58) | 0.001 | 7.05 (1.33–37.24) | 0.022 |
MCA, middle cerebral artery; ACA, anterior cerebral arteries (including anterior cerebral artery and anterior communicating artery); PCoA, posterior communicating artery; PC, posterior circulation.